A 2007 article from the New York Times travel section considers the controversy surrounding a proposed bridge to the former Incan capital Machu Picchu and comments on the heavy flow of tourism in the region.

Excerpt

“With around 2,500 visitors a day, some believe there are already too many tourists roaming around Machu Picchu destroying not just the ruins, but also the flora and fauna. They say the bridge could double that number of daily visitors and further endanger the site.”